6539333522 has 18 divisors (see below), whose sum is σ = 9892210887. Its totient is φ = 3242162700.

The previous prime is 6539333513. The next prime is 6539333597. The reversal of 6539333522 is 2253339356.

It can be written as a sum of positive squares in only one way, i.e., 3269666761 + 3269666761 = 57181^2 + 57181^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=57181.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6539333522.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24130247 + ... + 24130517.

Almost surely, 2^6539333522 is an apocalyptic number.

6539333522 is a deficient number, since it is larger than the sum of its proper divisors (3352877365).

6539333522 is an frugal number, since it uses more digits than its factorization.

6539333522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 484 counting only the distinct ones).

The product of its digits is 437400, while the sum is 41.

The square root of 6539333522 is about 80866.1457100559. The cubic root of 6539333522 is about 1870.0124416037.

The spelling of 6539333522 in words is "six billion, five hundred thirty-nine million, three hundred thirty-three thousand, five hundred twenty-two".